单项选择题
A.7d B.10d C.14d D.20d E.30d
A.4d B.7d C.10d D.12d E.14d
A.1d B.2~3d C.4~6d D.7~8d E.9~10d
A.胃癌 B.胃溃疡 C.脾破裂 D.急性阑尾炎 E.腹股沟斜疝
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